You can make a second account if you're looking for someone who blocked you but with this feature you can't block anyone.Actually that may not be such a bad feature. Some people can be blocked by high profile accounts with platforms, however say if you're a journalist who is blocked you will not see anything they post.
They cant reply you or @ you, they're just a spectator to your tweet. I don't think its that bad.
He keeps on making the app more worse every time.
Now people are going to have racist tweets on their home page